Product type: Flat Lens. Application: Optical. Model: FW-Glass.
Overview
The High Precision Optical Plano Convex Aspheric Lens is supplied as an optical lens made from Optical Glass. Listed geometry: size Customized, thickness Customized, single-lens shape. Optical / electrical data: transmittance >95%. Typical applications: Optical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Optical Glass |
|---|---|
| Type | Flat Lens |
| Shape | Single-lens |
| Size | Customized |
| Thickness | Customized |
| Transmittance | >95% |
| Usage | Optical |
| Model NO. | FW-Glass |
| Lenses Color | Clear |
| Growth Method | Ky |
| Supplier | Jiaozuo Commercial Finewin Co., Ltd. |
Technical data
| Material | N-bk7,H-K9L,Fused Silica,N-SF10,Silicon,CaF2,Sapphire etc. | ||
| Length | 2~300mm | Centration | <3 arc min |
| Height | 2~300mm | Clear Aperture | >90% |
| Radius | >1.5mm | Flatness(per 25mm at 632.8nm) | <1.5Lambda(General)<1/4Lambda(High Precision) |
| Center Thickness | >0.5mm | Irregularity of Fringes | 0.2-0.5 Lambda |
| Focal Length | 3~3000mm | Surface Quality(S/D) | 60/40,40/20 or better |
| Size Tolerance(mm) | +/-0.1mm,+/-0.05mm | Chamfer | <0.25mmx45 degree |
| Center Thichness Tolerance(mm) | +/-0.1mm,+/-0.05mm | Coating | Uncoated,AR,BBAR,Reflective |
| Focal length Tolerance(mm) | ±1% | Design Wavelength | 632.8nm |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “Customized”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica Wafer Material Selection for Precision Glass Processing. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Fused Silica Glass Wafers (2–12", JGS1/JGS2).
